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Yonago Lavas Ota and Katada, 1955

• Volcanic rocks
• Middle Pleistocene (0.77 - 0.55 Ma, K-Ar)
• Intruded by: Ikenotaira Lava

• Lithofacies: Lava, Pyroclastic rocks
• Lithofacies: Clinopyroxene-bearing orthopyroxene dacite

• Thickness: 800 m or thicker
• Upper limit: Unconformity (Azumaya Lavas, Yonagokimyo Lavas, Urakura Lavas)
• Lower limit: Unconformity (Yonago Tuff Breccia)

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Yonago-Fudodo - Fudo fall, Suzaka city, Nagano pref.
• Deposits (Sulphur): Yonago mine

• Takeshita et al. (2015) Jour. Geol. Soc. Japan, vol.121, no.7, pp.233-248, DOI
• Nishiki et al. (2014) Jour. Geol. Soc. Japan, vol.120, no.3, pp.89-103 DOI
• Ota and Katada (1955) Suzaka, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 54p. (in Japanese with English abstract 6p.)